Based on designs by Joseph Peklicz in t' #352 issue o' t' Apogee Peak o' Flight newsletter. Arrr! It’s a spool rocket with half pieces o' tubin' inducin' a horizontal spin on recovery. Avast! Mine is designed so it can be flown clustered: there’s a central 24 mm motor tube with three 18 mm motor tubes arranged around it. No particular reason, just felt like it. Avast, me proud beauty! Further from t' center are t' three half 24 mm tubes, and thar are three 18 mm posts.